What Determines Your Mortgage Rate? Key Factors Explained

Economic factors: inflation, Fed policy, and bond yields

The broader economy plays a major role in setting the baseline for mortgage rates. When inflation rises, lenders typically demand higher interest rates to keep their returns ahead of the decreasing purchasing power of money. Central bank policy also matters: when the Federal Reserve signals tighter monetary policy, mortgage rates often climb in response.

A key reference point is the yield on 10-year U.S. Treasury bonds. Mortgage rates tend to track these yields, but the gap between them can widen or narrow. Since 2022, the spread between mortgage rates and 10-year Treasury yields has been elevated, contributing to higher mortgage rates for borrowers. This spread has been affected by the Federal Reserve's retreat from purchasing mortgage-backed securities, which reduced a major source of demand for those securities.

Sources: Consumer Financial Protection Bureau

Personal factors: credit score, down payment, and loan term

Your personal financial profile is one of the most direct influences on the rate you're offered. Lenders use your credit score as a measure of risk: in general, higher credit scores receive lower interest rates, while lower scores result in higher rates. Your down payment also matters—a larger down payment reduces the lender's risk and typically earns you a lower rate.

The length of your loan term is another key factor. Shorter-term loans, such as 15-year fixed-rate mortgages, generally carry lower interest rates than 30-year loans. While monthly payments are higher, you pay less total interest and build equity faster.

If you put down less than 20%, lenders usually require private mortgage insurance (PMI), which adds to your monthly housing cost. That doesn't change the interest rate itself, but it's an important consideration when comparing total costs.

Sources: Consumer Financial Protection Bureau

Loan type and points

The type of loan you choose can have a significant effect on your interest rate. Conventional, FHA, VA, and USDA loans often carry different rates because they have different guarantee structures and risk profiles. Adjustable-rate mortgages (ARMs) typically offer a lower initial rate than fixed-rate loans, but that rate can increase later. It's important to compare the full terms, not just the starting rate.

You can also pay discount points at closing to reduce your interest rate. One point equals 1% of the loan amount, paid as a one-time fee. Borrowers are more likely to pay points when rates are high—and data show that homebuyers with lower credit scores tend to pay discount points more often than those with higher scores.

Sources: Consumer Financial Protection Bureau

How to improve your rate factors

While you can't control the economy, you can take steps to improve the personal factors that influence your mortgage rate. Because credit score is a major factor, focus on paying bills on time, reducing debt, and checking your credit report for errors before applying. A larger down payment can help you secure a lower rate and avoid PMI, so consider saving toward that goal.

Choosing a shorter loan term, such as a 15-year fixed-rate mortgage, can also lower your rate—but make sure the higher monthly payment fits your budget. Comparing loan types and understanding discount points can help you decide whether it's worth paying upfront to reduce your rate over time.

• Check your credit report for errors and work on improving your score by paying bills on time and reducing debt.
• Save for a larger down payment to reduce lender risk and potentially secure a lower rate.
• Consider a shorter loan term like a 15-year fixed-rate mortgage, if the higher monthly payment fits your budget.
• Compare different loan types (conventional, FHA, VA, USDA) and understand how discount points work to see if they're worth paying.

Sources: Consumer Financial Protection Bureau

Rate lock considerations

Mortgage rates can fluctuate based on market conditions. A rate lock is an agreement with a lender that holds a specific interest rate for a set period, which can protect you if rates rise while your application is being processed. The terms and availability of rate locks vary by lender, so it's important to ask about the specifics of any lock offer.

Checking your rate eligibility

Because mortgage rates vary by lender and are tailored to each borrower, the best way to know your rate is to get personalized quotes from multiple lenders. Before you apply, review your credit score, down payment, and planned loan term so you can compare offers meaningfully.

Use reliable tools, such as the Consumer Financial Protection Bureau's interest rate explorer, to see how different factors—like credit score, down payment, and loan type—can affect the rates you might be offered. This can help you set realistic expectations and identify which factors you can improve.

Sources: Consumer Financial Protection Bureau